{"id":"F2008L00789","name":"AD/ERJ-190/1 - Air Data Smart Probes","slug":"ad-erj-190-1-air-data-smart-probes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":72871,"registerId":"commonwealth-F2008L00789-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Embraer ERJ-190 Series Aeroplanes","sectionType":"division","heading":"Embraer ERJ-190 Series Aeroplanes","content":"### Embraer ERJ-190 Series Aeroplanes\n\n| AD/ERJ-190/1 | Air Data Smart Probes | 5/2008 DM |\n| ------------ | --------------------- | --------- |\n\n| Applicability: | ERJ-190 model aeroplanes, equipped with Air Data Smart Probes part number (P/N) 2015G2H2H-4( ), 2015G2H2H-5( ), 2015G2H2H-6( ) or 2015G2H2H-7( ).                                                                                                                                                                                                                                                                                                                      |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Carry out a detailed inspection of the four \"Air Data Smart Probes\" drain hole and remove the accumulated moisture in accordance with Embraer Service Bulletin 190-34-0003, original issue, dated 2 December 2005 or further revisions approved by the Brazilian Agência Nacional de Aviação Civil (ANAC).                                                                                                                                                          |\n|                | Note 1: For the purpose of this Directive, a detailed inspection is defined as: \"An intensive examination of a specific item, installation or assembly to detect damage, failure or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirrors, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate access procedures may be required.\" |\n|                | The optional installation of Air Data Smart Probes P/N 2015G2H2H-8( ) in accordance with the procedures detailed in the Embraer SB 190-34-0008 original issue, dated 19 September 2006 or further revisions approved by ANAC, constitutes terminal action to the repetitive inspections.                                                                                                                                                                               |\n|                | 2. Air data smart probes part number (P/N) 2015G2H2H-4( ), 2015G2H2H-5( ), 2015G2H2H-6( ) or 2015G2H2H-7( ) may not be reinstalled on any aeroplane as a replacement for probe P/N 2015G2H2H-8( ).                                                                                                                                                                                                                                                                     |\n|                | Note 2: ANAC AD 2006-05-08R1 refers.                                                                                                                                                                                                                                                                                                                                                                                                                                   |\n| Compliance:    | For Requirement 1 - Either within the next 600 hours time in service (TIS) after the first issue of an Australian Certificate of Airworthiness and thereafter, at intervals that do not exceed 600 hours TIS until the Air Data Smart Probe is replaced by a probe P/N 2015G2H2H-8( ).                                                                                                                                                                                 |\n|                | For Requirement 2 - As of the effective date of this Directive.                                                                                                                                                                                                                                                                                                                                                                                                        |\n|                | This Airworthiness Directive becomes effective on 27 March 2008.                                                                                                                                                                                                                                                                                                                                                                                                       |\n\n| Background: | The ANAC has received reports of moisture being found in the pneumatic passage between the pitot port and the pressure sensors in the Air Data Smart Probe. That moisture may freeze and block the sensors, causing erroneous information to the Air Data System. |\n| ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | Since this condition may affect the safety of the aeroplane, this Directive requires the repetitive inspection of the Air Data Smart Probe for moisture and, if necessary, the removal of any accumulated moisture until the probes are replaced.                 |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n12 March 2008","sortOrder":0},{"sectionNumber":"AD/ERJ-190/1","sectionType":"part","heading":"AD/ERJ-190/1","content":"## AD/ERJ-190/1","sortOrder":1},{"sectionNumber":"Air Data Smart Probes","sectionType":"part","heading":"Air Data Smart Probes","content":"## Air Data Smart Probes","sortOrder":2},{"sectionNumber":"5/2008 DM","sectionType":"part","heading":"5/2008 DM","content":"## 5/2008 DM","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains limited to Embraer ERJ‑190 aeroplanes equipped with the listed Air Data Smart Probe part numbers. The Directive imposes repetitive inspections and moisture removal until replacement by probe P/N 2015G2H2H‑8, and forbids reinstalling the older probe P/Ns. It does not expand to other aircraft types or unrelated systems; the only terminating action is installation of the specified new probe per the referenced Service Bulletin."},"complexity_factors":["Technical specificity of applicability: only ERJ‑190 aeroplanes with particular probe P/Ns are covered (requires accurate parts identification).","Dependence on external documents: compliance actions and inspection technique reference Embraer Service Bulletins and ANAC approvals (operators must obtain and follow those SB revisions).","Repeated maintenance obligation until terminating action: inspections every 600 hours TIS create ongoing scheduling and labour costs and record‑keeping burdens.","Part replacement prohibition: ban on reinstalling older P/Ns constrains spare‑parts use, inventory and procurement choices for operators and MROs.","Defined but operationally demanding inspection standard: the term “detailed inspection” permits technical judgment, lighting and access aids, increasing variability in execution and possible oversight.","Safety‑critical consequence: potential for frozen moisture to cause erroneous air data increases enforcement priority and possible operational disruption if probes are found contaminated."],"plain_english_summary":"This Directive requires operators of Embraer ERJ‑190 aeroplanes fitted with specified Air Data Smart Probe part numbers to perform a “detailed inspection” of the four probe drain holes, remove any moisture found, repeat the inspection every 600 hours TIS until the probe is replaced by P/N 2015G2H2H‑8, and prohibits reinstalling the older probe P/Ns. ANAC reported moisture can freeze and block pitot‑to‑sensor passages causing erroneous air‑data; the rule shifts inspection, maintenance and replacement costs and scheduling burden onto operators and offers new‑probe installation as terminating action."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains a narrow, targeted scope focused specifically on the moisture contamination issue in Air Data Smart Probes for the ERJ-190. The requirements (inspection, replacement, and prohibition on reinstallation) directly address the safety problem identified in the background without expanding into unrelated operational or maintenance areas."},"complexity_factors":["Single, clearly defined applicability (one aircraft model, four specific part numbers)","Only two substantive requirements with straightforward compliance timelines","Minimal cross-referencing (only one external reference to Brazilian aviation authority AD)","Single defined term ('detailed inspection') with explicit plain-English definition provided","No nested exceptions or conditional logic — requirements apply uniformly to all affected aircraft","Short document (approximately 300 words of substantive content)","Clear, linear structure: Applicability → Requirements → Compliance → Background"],"plain_english_summary":"This AD mandates owners/operators of Embraer ERJ-190s fitted with specified Air Data Smart Probe models to inspect probe drain holes for moisture, remove any water, and ultimately replace the affected probes with an improved -8 part; the old probes are prohibited from reinstallation.  \n\nIt affects airlines and maintenance crews in Australia because trapped moisture can freeze in flight, potentially blocking air data sensors and producing dangerous, incorrect flight information."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-erj-190-1-air-data-smart-probes","history":"/api/acts/ad-erj-190-1-air-data-smart-probes/history","analysis":"/api/acts/ad-erj-190-1-air-data-smart-probes/analysis","conflicts":"/api/acts/ad-erj-190-1-air-data-smart-probes/conflicts","importantCases":"/api/acts/ad-erj-190-1-air-data-smart-probes/important-cases","documents":"/api/acts/ad-erj-190-1-air-data-smart-probes/documents"}}